diff --git a/generate-tarball.sh b/generate-tarball.sh
index 49ea030..4193830 100755
--- a/generate-tarball.sh
+++ b/generate-tarball.sh
@@ -20,6 +20,6 @@ find -name '*.class' -delete
 rm -r */engine/javax-src
 
 # TODO Simply use ${version} without substitution when a newer version is available
-tar cf "../${name}-${version/'~'/'-'}.tar.gz" *
+tar czf "../${name}-${version/'~'/'-'}.tar.gz" *
 cd ..
 rm -r tarball-tmp "${name}-${version}.orig.tar.gz"
diff --git a/sources b/sources
index c02c0d3..587a07c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (bsh-2.0-b6.tar.gz) = 22e920fa78d2117cc27074f12a12246cb2923b1d308736b2ed5fd2faa9bbc8b77b4991abc862097cce4e9de473c17a9d9a85ee5bdab5462f4a92c64c3d49bfc1
+SHA512 (bsh-2.0-b6.tar.gz) = 30e35d3c09cecf99a5576839420ecc94ebc9ccc9d8246de51efd6c93ddee72f5bb51a12370451eb1af3ea61db731706949905c2748c646e387819913ee6522f9